My DS was dry last Easter, but is still in nappies at night and they are showing no sign of being even nearly dry in the mornings - they are often so wet that his PJs and sheet are wet.
He is 3.5yrs
He does have a beaker of milk about an hour before bedtime (as his eating is pretty rubbish) but then no drink other than the odd sip of water I leave by his bedside. I always make him do a wee before going to bed.